Engine : Expired / Refrigeration AC - 565/252
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| Using the illustrated chart giving the boiling point of moisture at various depths of vacuum, with an ambient temperature of 72 °F, what depth of vacuum would be associated with the BEST chance of achieving a dehydration evacuation with a deep vacuum pump? Illustration GS-RA-56 |
| A) 29.20" Hg or 20,320 microns of Hg absolute |
| B) 28.75" Hg gauge or 31,750 microns of Hg absolute |
| C) 29" Hg gauge or 25,400 microns of Hg absolute |
| D) 29.99" Hg or 254 microns of Hg absolute |
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